1.69 Ratio Premium Gear SetPart No. 169S-K

Sonnax offers complete GM Powerglide planetary gear sets in a variety of gear set options and configurations to ensure you get the performance you want without overpaying or sacrificing quality.

Track-proven to 2,000 horsepower, Sonnax Premium gears are an ideal choice when extra durability is needed at a reasonable cost in demanding applications. 1.69 Ratio Premium gear set 169S-K features premium-processed sun and pinion gears that are a big step up from standard case-hardened and tempered varieties. A top-quality material combined with a special heat-treating process results in gears with improved grain structure and stability that are tougher and more wear resistant.

Top-quality sun and pinion gears deliver outstanding durability

12-Tooth billet drum flange is broached and matched to the sun gear for a precise press fit, no welding required

See chart and specs below to determine if this planetary assembly suits your application, or dial in options here to choose your build.

Extreme Gears for Extreme Performance

To greatly improve the life of Extreme gear sets, the sun and pinion gear undergo the same advanced processing as assemblies developed for Formula 1™, NASCAR® and other high-end professional racing circuits:

Sonnax is an industry leader in the cutting edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries, and industrial sectors utilizing drivetrain technology.